| 摘要 |
PURPOSE:To smooth the traveling on a curving portion in the captioned device such as a warehouse or the like by providing a sled portion on the back surface of a tray which is pivotally fitted to the link of a chain and also providing a receiving member abutted to the sled portion on the curving portion of a track. CONSTITUTION:A pair of tracks 8 and 8 are formed in such a way as to have a L-angle type section and the range from the just before the input side of the curving portion of a track to the just after the output side thereof is escaped downward so as to float the inner and outer wheels 18 and 19 of the tray 3. Besides, on the curving portion of the track 6, a belt-lik receiving member 28 made of low frictional plastic is formed. A sled portion 29 is provided on the back surface of the tray 3 so that the sled portion 29 is slidably touched onto the receiving member 28 for supporting the weight of the tray 3 and the like. With this arrangement, on the curving portion of the track, the wheels are floated and supported by the sliding movement between the sled portion and the receiving member, thus being moved. Therefore, it is possible to travel the tray smoothly on the curving portion of the tray.
|
